"I hoped we'd meet again, Thravak. After all, I kept trying to tell you your plan wouldn't work and mine would, and look how we turned out. I have a position with a Plan that will work, and yours is refusing mine."

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When Zakaz's social system disintegrated, he joined Thravak's military force and was a trusted lieutenant of his. When Makuta Chirox invaded the island and tried to capture Thravak and his force, however, Jaykorax betrayed his commander and companions to the Makuta. His life was spared, but he was still experimented upon by the Makuta, which turned him into an insectoid creature.

Jaykorax had served Burtok for some time, and the Makuta had given his loyal minion a talisman to tame and lead Scorpio-Spiders like an army, adding its power to Jaykorax's ability to mentally influence insectoid creatures to make them unerringly obedient to Jaykorax, and, by extension, Burtok. Jaykorax met Zracknar at some point, but there was no friendship between the two.

After Burtok's assumption of Rayzok's identity, Burtok summoned his minion to Crystal Island to aid him in his conquest of the Avenging Alliance. Jaykorax and his Scorpio-Spider forces smashed down a wall to join a battle between the Makuta, his forces, and the Avenging and Universal Alliances. The addition of the spiders did not enact a victory, however, and Jaykorax and his forces were still defeated temporarily, which allowed the Alliances to escape.

Jaykorax's last fulfilled mission was to capture the Avenging Alliance for Burtok to have his way with. Soon after, after the Alliance had escaped their prison, he and Thranatuka were summoned by the Makuta, and promptly absorbed into his essence.